The Underwood Ammo .357 Magnum delivers exceptional performance with 180 grain hard cast flat nose projectiles featuring gas check design for superior accuracy and 1400 FPS muzzle velocity.Underwood Ammo .357 Magnum ammunition180 grain hard cast flat nose projectiles with gas checkNickel-plated brass casings for reliable extraction1400 FPS muzzle velocity / 784 ft-lbs muzzle energy20 rounds per boxIdeal for hunting target shooting and self-defense applications where deep penetration and consistent performance are essential.